Say what?
Mark 10:17 Now as He was going out on the road, one came running, knelt before Him, and asked Him, "Good Teacher, what shall I do that I may inherit eternal life?" 18 So Jesus said to him, "Why do you call Me good? No one is good but One, that is, God. 19 You know the commandments: 'Do not commit adultery,' 'Do not murder,' 'Do not steal,' 'Do not bear false witness,' 'Do not defraud,' 'Honor your father and your mother.' " 20 And he answered and said to Him, "Teacher, all these things I have kept from my youth." 21 Then Jesus, looking at him, loved him, and said to him, "One thing you lack: Go your way, sell whatever you have and give to the poor, and you will have treasure in heaven; and come, take up the cross, and follow Me." 22 But he was sad at this word, and went away sorrowful, for he had great possessions. 23 Then Jesus looked around and said to His disciples, "How hard it is for those who have riches to enter the kingdom of God!"
That's a pretty straightforward teaching -- without parable.
Good News Magazine hardly has the corner on 'REAL' secrets.
I think you need to show the rest of the quote. When Jesus was on earth relatively few were able to understand the parables he used:
But He promised that the way to the Kingdom of God would be a secret, a mystery except to His disciples—and they would be very few.
He told His disciples: "It has been given to you to know the mysteries of the kingdom of heaven, but to them it has not been given . . . Therefore I speak to them in parables, because seeing they do not see, and hearing they do not hear, nor do they understand" (Matthew 13:11, 13).
Only by having the spirit can you know exactly HOW to get to the kingdom of heaven:
1Co 2:14 But the natural man receiveth not the things of the Spirit of God: for they are foolishness unto him: neither can he know them, because they are spiritually discerned
As for your example, yes, keeping the commandments CAN bring eternal life. But we can't keep the commandments perfectly, physically or spiritually. However, when the spirit of Christ dwells in us, can stop doing our own will and let the spirit of Christ live in and through us. This spirit WILL keep the commandments of God insofar as we let it.